CN101664650A - Method and device for dissolving gas in oil - Google Patents
Method and device for dissolving gas in oil Download PDFInfo
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- CN101664650A CN101664650A CN200810042354A CN200810042354A CN101664650A CN 101664650 A CN101664650 A CN 101664650A CN 200810042354 A CN200810042354 A CN 200810042354A CN 200810042354 A CN200810042354 A CN 200810042354A CN 101664650 A CN101664650 A CN 101664650A
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Abstract
The invention provides a method and a device for dissolving a gas in oil. The device comprises a cylinder body, an external pipeline, a circulation pump, a gas charging hole and an oil filling hole, wherein at least one layer of porous partition board is arranged inside the cylinder body; and a bubble refining device is arranged in the gas charging hole to refine gases charged in the cylinder body, so that the gases can be dissolved easily. The cylinder body and the external pipeline are communicated to form a circulation space; the circulation pump provides circulation power; the oil and gascharged in a device are stirred in a circulation space; the oil and the gases are repeatedly compressed and diffuse through the porous partition board; and thus, the gases are uniformly dissolved in the oil to form a standard oil source applicable to an online chromatograph. In addition, the connection parts of the device are provided with sealing devices and adopt circular arc-shaped transition,so the high sealing performance of the whole device is ensured and the dead corners in oil circulation are eliminated.
Description
Technical field
The present invention relates to a kind of dissolver and method, particularly a kind of gas is solved homogeneously in device and method in the oil.
Background technology
For a long time, dissolved gas analysis (dissolvedgas analysis in the insulating oil (comprising transformer oil, capacitor oil), DGA)---gas chromatographic analysis, being known as by countries in the world is to monitor and diagnose oil-filled power equipment initial failure, prevention bust the best way.And carrying out along with the status of electric power service work, utilize online gc to carry out content detection and become more and more important being dissolved in various characteristic gas in the transformer insulation oil, wherein the most basic is that the test accuracy of online gc is carried out Real-Time Evaluation.
Prior art normally by comparing the real content (or Laboratory Instruments detected value) of online gc show value and oil dissolved gas, realizes the evaluation to the online gc test accuracy.Wherein, provide uniform and stable standard oil sources just to become the problem that needs emphasis to solve.
Characteristic gas constantly is dissolved in the oil through convection current, diffusion, and its mass transport process is: the separating out and outwards loss of the diffusion of motion of air bubbles, gas molecule, dissolving and exchange, gas.Factors such as temperature when the characteristic of the solubility size of gas in insulating oil and gas, the chemical composition of oil and dissolving all have confidential relation.Because the diffusing capacity of gas in the unit interval and on the per surface is directly proportional with concentration, therefore, available diffusion coefficient shows the diffusion-condition of gas in container, and it is not only the function of concentration and pressure, and increases with increase in temperature or viscosity reduction.
Usually utilize common fuel tank or other easy device as joining oil vessel at present, the subject matter of existence is that characteristic gas content is difficult to control in the oil, and oil dissolved gas is escaped to the external world easily; Or because factor such as design causes gas is present in internal tank with bubble form in the oil, can't be dissolved in the oil equably.
In view of this, how to provide a kind of gas is solved homogeneously in device and method in the oil, reduce above-mentioned drawback and become the technical problem that industry needs to be resolved hurrily.
Summary of the invention
Technical problem solved by the invention is to provide a kind of gas is dissolved in device and method in the oil, can control the content of gas in the oil, and gas is dissolved in the oil equably.
For solving the problems of the technologies described above, the invention provides and a kind of gas is dissolved in device in the oil, it comprises: cylindrical shell, circulating pump, be used to connect the exterior line of described cylindrical shell and circulating pump, be arranged at the injecting hole on the exterior line, and the oil filler point that is used in cylindrical shell, injecting oil; Described cylindrical shell is communicated with exterior line and forms a cyclic space, provides circulation power by described circulating pump; Described inner barrel also is provided with one deck porous barrier at least.
The junction of described each parts of device is provided with sealing device, and the sealing device is the polytetrafluoroethylene (PTFE) bedding and padding.The circular arc type transition is adopted in junction between described cylinder inboard wall and parts.
In said apparatus, described porous barrier covers the entire cross section of described cylindrical shell, is evenly distributed with a plurality of through holes on it, and the diameter of through hole is less than 5 millimeters.Also be provided with the fining air bubbles device in the described injecting hole, this fining air bubbles device is a hollow sphere, and its surface is evenly distributed with a plurality of apertures, and is concrete, can be the gas diffusion tip that the crystalloid alumina sintering forms.
The present invention also provides a kind of gas has been dissolved in method in the oil, is applied in the sealing device, and described method comprises the following steps:
At least one deck porous barrier is set in described sealing device;
To be injected into sealing device inside through the oily vacuum that the dehydration degassing is handled;
Injecting gas in described sealing device, and oil and gas is blended in the cyclic space stirs, make oil and gas on described porous barrier, take place repeatedly to compress and spread, thereby gas is dissolved in the oil.
Wherein, when injecting gas, also can utilize a fining air bubbles device with fining air bubbles.
Of the present invention gas is dissolved in device and method in the oil, utilize circulating pump to make the oil sample circulation, add a certain amount of characteristic gas by being located in the oil of injecting hole in device on the circulation line, by the fining air bubbles device of establishing in the injecting hole and the porous barrier of inner barrel, and circulate the gas that guarantee to add in the oil by oil sample and be dissolved in the oil quickly and evenly, thereby obtain containing the standard insulating oil of variable concentrations characteristic gas.In addition, because all pipeline connecting portions have all installed the sealing of polytetrafluoroethylene (PTFE) bedding and padding additional, guaranteed the overall sealing performance of device; Arc transition is all adopted in inner barrel switching place, has eliminated oily circulation dead angle; The injecting hole front end installs the gas diffusion tip additional, makes fining air bubbles be convenient to dissolving; Inner barrel installs porous barrier additional, and be arranged on the cross section of whole inner barrel, guarantee oil when flowing through cylindrical shell, can produce repeatedly compression, diffusion process, the turbulent condition that the high speed disturbance of cooperation circulating pump is produced realizes the uniform dissolution of each gas component in oil.
Description of drawings
Fig. 1 is the apparatus structure schematic diagram of a preferred embodiment of the present invention.
Fig. 2 is the structural representation of fining air bubbles device.
The specific embodiment
Below by specific embodiment explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the content that this specification disclosed.The present invention also can be implemented or used by other different specific embodiments, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications and change under the spirit of the present invention not deviating from.
Of the present invention gas is dissolved in device and method in the oil, can be applicable in the gas chromatographic analysis (DGA) of power equipment transformer insulation oil online gc carried out verification, when verification is provided need with the standard insulating oil that contains the different characteristic gas content.In preferred embodiment of the present invention, be that example describes so that the standard oil sources that a certain amount of characteristic gas is solved homogeneously in the transformer insulation oil to be provided to online gc, but not as limit.
Referring to Fig. 1, the device 1 that gas is dissolved in the oil of the present invention mainly comprises: cylindrical shell 10, exterior line 11, circulating pump 12, injecting hole 13 and oil filler point 14, wherein, cylindrical shell 10 links to each other with circulating pump 12 by exterior line 11, injecting hole 13 is opened on the exterior line 11, and oil filler point 14 is connected to cylindrical shell 10 by another pipeline.
The inside of described cylindrical shell 10 has one deck porous barrier 100 at least, adopts double-layer clapboard between the upper and lower every setting in the present embodiment, and every layer of porous barrier 100 all covered the entire cross section of cylindrical shell 10.The concrete structure of porous barrier 100 sees also the amplifier section among Fig. 1, its surface many through holes that evenly distributed, the aperture of each through hole is less than 5 millimeters, so circulate when stirring oil and gas being injected this cylindrical shell 10, gas can be dissolved in the oil after repeatedly compressing and spread through the through hole on the porous barrier 100 better.
For the ease of circulating of oil, eliminate the dead angle that may occur in the cyclic process, cylindrical shell 10 inwalls have adopted the circular arc type transition, and particularly in the junction of parts, for example the connecting place of cylindrical shell 10 and exterior line 11 all is designed to circular-arc.In addition, this device 1 is also set up sealing device in each junction, and polytetrafluoroethylene (PTFE) bedding and padding for example are to guarantee the sealing of whole device 1.
Whole piece exterior line 11 is communicated with this cylindrical shell 10 and forms a cyclic space, circulating pump 12 is communicated with exterior line 11, the power of circulation is provided, after this circulating pump 12 is started working, provide certain power that oil is mixed stirring with gas, repeatedly circulate in the above-mentioned cyclic space, in present embodiment, this circulating pump 12 is a magnetic drive pump.
Injecting hole 13 is used for to cylindrical shell 10 inner injecting gas, and it is built-in with fining air bubbles device 130 as shown in Figure 2.In the present embodiment, this fining air bubbles device 130 is the gas diffusion tip that the crystalloid alumina sintering forms, and is the spheroid of a hollow, and the surface is evenly distributed with a plurality of apertures, and the aperture is less than 80 microns.This injecting hole 13 is arranged on the gas that helps on the exterior line 11 injecting and carries out flow-control.
Adopt said apparatus that the concrete grammar that gas is dissolved in the oil is as follows: at first, to inject the oil that certain volume is handled through the dehydration degassing by oil filler point 14 vacuum in device; ON cycle pump 12 makes the interior oil of cylindrical shell be in flow regime; Then by injecting hole 13 injecting gas in described device, oil is mixed with gas, and under the effect of circulating pump 12, in the cyclic space that cylindrical shell 10 and exterior line 11 constitute, stir, make oil and gas on porous barrier 100, take place repeatedly to compress and spread, thereby gas is dissolved in the oil.Need to prove that the oil of injection is the insulating oil of handling through the dehydration degassing, and constant volume.
Owing to when injecting gas, utilize fining air bubbles device 130 with fining air bubbles, can make gas be dissolved in better in the oil like this, reduce the problem that gas exists with bubble form in the conventional method.
In sum, of the present invention gas is dissolved in device in the oil, utilize circulating pump to make the oil sample circulation, add a certain amount of characteristic gas by being located in the oil of injecting hole in device on the circulation line, by the fining air bubbles device of establishing in the injecting hole and the porous barrier of inner barrel, and circulate the gas that guarantee to add in the oil by oil sample and be dissolved in the oil quickly and evenly, thereby obtain containing the standard insulating oil of variable concentrations characteristic gas.
Claims (12)
1, a kind of gas is dissolved in device in the oil, it is characterized in that, comprising: cylindrical shell, circulating pump is used to connect the exterior line of described cylindrical shell and circulating pump, is arranged at the injecting hole on the exterior line, and the oil filler point that is used for injecting oil in cylindrical shell; Described cylindrical shell is communicated with exterior line and forms a cyclic space, provides circulation power by described circulating pump; Described inner barrel also is provided with one deck porous barrier at least.
2, as claimed in claim 1 gas is dissolved in device in the oil, it is characterized in that the junction of described each parts of device is provided with sealing device.
3, as claimed in claim 2 gas is dissolved in device in the oil, it is characterized in that described sealing device is the polytetrafluoroethylene (PTFE) bedding and padding.
4, as claimed in claim 1 gas is dissolved in device in the oil, it is characterized in that the circular arc type transition is adopted in the junction between described cylinder inboard wall and parts.
5, as claimed in claim 1 gas is dissolved in device in the oil, it is characterized in that described porous barrier covers the entire cross section of described cylindrical shell.
6, as claimed in claim 1 gas is dissolved in device in the oil, it is characterized in that, be evenly distributed with a plurality of through holes on the described porous barrier, and the diameter of through hole is less than 5 millimeters.
7, as claimed in claim 1 gas is dissolved in device in the oil, it is characterized in that, also be provided with the fining air bubbles device in the described injecting hole.
8, as claimed in claim 7 gas is dissolved in device in the oil, it is characterized in that described fining air bubbles device is a hollow sphere, its surface is evenly distributed with a plurality of apertures.
9, as claimed in claim 8 gas is dissolved in device in the oil, it is characterized in that described fining air bubbles device is the gas diffusion tip that the crystalloid alumina sintering forms.
10, a kind of gas is dissolved in method in the oil, is applied in the sealing device, it is characterized in that described method comprises the following steps:
At least one deck porous barrier is set in described sealing device;
To be injected into sealing device inside through the oily vacuum that the dehydration degassing is handled;
Injecting gas in described sealing device, and oil and gas is blended in the cyclic space stirs, make oil and gas on described porous barrier, take place repeatedly to compress and spread, thereby gas is dissolved in the oil.
11, as claimed in claim 10 gas is dissolved in method in the oil, it is characterized in that, when injecting gas, utilize a fining air bubbles device fining air bubbles.
12, as claimed in claim 10 gas is dissolved in method in the oil, it is characterized in that the described cyclic space is that the sealing device is communicated with formation with an exterior line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810042354A CN101664650A (en) | 2008-09-01 | 2008-09-01 | Method and device for dissolving gas in oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810042354A CN101664650A (en) | 2008-09-01 | 2008-09-01 | Method and device for dissolving gas in oil |
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| CN101664650A true CN101664650A (en) | 2010-03-10 |
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| CN200810042354A Pending CN101664650A (en) | 2008-09-01 | 2008-09-01 | Method and device for dissolving gas in oil |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105457A (en) * | 2011-11-10 | 2013-05-15 | 中国石油化工股份有限公司 | Apparatus for evaluating defoaming performance of defoaming agent |
| CN103540384A (en) * | 2013-10-21 | 2014-01-29 | 叶万久 | Clean-type high-energy purifier |
| CN106964268A (en) * | 2017-04-28 | 2017-07-21 | 宁波福莱源纳米科技有限公司 | A kind of micro-nano bubble generator |
| CN107715714A (en) * | 2017-10-20 | 2018-02-23 | 刘斌 | A kind of device of mixed gas and liquid |
| CN111205847A (en) * | 2020-01-18 | 2020-05-29 | 海兴县新源化工有限公司 | Oil well fracturing cross-linking agent, preparation device and preparation method thereof |
| CN113533166A (en) * | 2021-07-14 | 2021-10-22 | 同济大学 | Device for testing high-pressure gas permeability of sealing material in tensile state and application |
-
2008
- 2008-09-01 CN CN200810042354A patent/CN101664650A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105457A (en) * | 2011-11-10 | 2013-05-15 | 中国石油化工股份有限公司 | Apparatus for evaluating defoaming performance of defoaming agent |
| CN103105457B (en) * | 2011-11-10 | 2015-04-15 | 中国石油化工股份有限公司 | Apparatus for evaluating defoaming performance of defoaming agent |
| CN103540384A (en) * | 2013-10-21 | 2014-01-29 | 叶万久 | Clean-type high-energy purifier |
| CN106964268A (en) * | 2017-04-28 | 2017-07-21 | 宁波福莱源纳米科技有限公司 | A kind of micro-nano bubble generator |
| CN107715714A (en) * | 2017-10-20 | 2018-02-23 | 刘斌 | A kind of device of mixed gas and liquid |
| CN111205847A (en) * | 2020-01-18 | 2020-05-29 | 海兴县新源化工有限公司 | Oil well fracturing cross-linking agent, preparation device and preparation method thereof |
| CN113533166A (en) * | 2021-07-14 | 2021-10-22 | 同济大学 | Device for testing high-pressure gas permeability of sealing material in tensile state and application |
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Application publication date: 20100310 |